{"schema":"threatline.record/2","record":{"id":"CVE-2021-30657","aliases":[],"summary":"Apple macOS Unspecified Vulnerability","details":"Apple macOS contains an unspecified logic issue in System Preferences that may allow a malicious application to bypass Gatekeeper checks.","categories":["Operating systems"],"product":"macOS","vendor":"Apple","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2021-30657","source_modified_at":"2025-10-21T23:25:34.280Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"macOS","vendor":"Apple","versions":[{"lessThan":"11.3","status":"affected","version":"unspecified","versionType":"custom"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2021-30657","source_modified_at":"2025-10-21T23:25:34.280Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"macOS","vendor":"Apple","versions":[{"lessThan":"2021","status":"affected","version":"unspecified","versionType":"custom"}],"defaultStatus":null}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2021-30657","source_modified_at":"2025-10-21T23:25:34.280Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"macOS","ecosystem":null},"version":"11.3","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2021-30657","source_modified_at":"2025-10-21T23:25:34.280Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"macOS","ecosystem":null},"version":"2021","basis":"first unaffected version stated in the CVE record"}],"cvss":5.5,"severity":"Medium","kev":{"listed":true,"date_added":"2021-11-03","due_date":"2021-11-17","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.68531,"percentile":0.99339,"score_date":"2026-10-23"},"published_at":"2021-09-08T14:49:34.000Z","modified_at":"2025-10-21T23:25:34.280Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2021-30657","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:25:34.280Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/osx/browser/osx_gatekeeper_bypass.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2021-03-25"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2021-30657","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30657","source":"CISA KEV"},{"source":"CVE List","url":"https://support.apple.com/en-us/HT212325","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://support.apple.com/en-us/HT212326","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30657","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"partial","assessed_at":"2025-01-29T17:24:32.300037Z"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"macOS Gatekeeper check bypass","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/osx/browser/osx_gatekeeper_bypass.rb","date":"2021-03-25","added":"2022-04-05","check":false}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:25:34.280Z","content_hash":"5a6f5017233f35a8d5cd29719db3af37145caddb775341156b3f9b8bea8458e5"}}